#include <string.h>
#include <errno.h>
#include <mntent.h>
+#include <locale.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/mount.h>
#include <system/system.h>
#include <process/process.h>
#include <url/url.h>
+#include <i18n/i18n.h>
+
+#include <sys/sysmacros.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <arpa/inet.h>
#include "device-handler.h"
#include "discover-server.h"
+#include "devmapper.h"
#include "user-event.h"
#include "platform.h"
#include "event.h"
#include "boot.h"
#include "udev.h"
#include "network.h"
+#include "ipmi.h"
+
+enum default_priority {
+ DEFAULT_PRIORITY_REMOTE = 1,
+ DEFAULT_PRIORITY_LOCAL_FIRST = 2,
+ DEFAULT_PRIORITY_LOCAL_LAST = 0xfe,
+ DEFAULT_PRIORITY_DISABLED = 0xff,
+};
+
+struct progress_info {
+ unsigned int percentage;
+ unsigned long size; /* size in bytes */
+
+ const struct process_info *procinfo;
+ struct list_item list;
+};
struct device_handler {
struct discover_server *server;
struct discover_device **devices;
unsigned int n_devices;
+ struct ramdisk_device **ramdisks;
+ unsigned int n_ramdisks;
+
struct waitset *waitset;
struct waiter *timeout_waiter;
bool autoboot_enabled;
unsigned int sec_to_boot;
struct discover_boot_option *default_boot_option;
+ int default_boot_option_priority;
+
struct list unresolved_boot_options;
struct boot_task *pending_boot;
bool pending_boot_is_default;
+
+ struct list progress;
+ unsigned int n_progress;
};
static int mount_device(struct discover_device *dev);
static int device_handler_init_sources(struct device_handler *handler);
static void device_handler_reinit_sources(struct device_handler *handler);
+static void device_handler_update_lang(const char *lang);
+
void discover_context_add_boot_option(struct discover_context *ctx,
struct discover_boot_option *boot_option)
{
return handler->devices[index];
}
+struct network *device_handler_get_network(
+ const struct device_handler *handler)
+{
+ return handler->network;
+}
+
struct discover_boot_option *discover_boot_option_create(
struct discover_context *ctx,
struct discover_device *device)
}
struct discover_device *discover_device_create(struct device_handler *handler,
- const char *id)
+ const char *uuid, const char *id)
{
struct discover_device *dev;
- dev = device_lookup_by_id(handler, id);
+ if (uuid)
+ dev = device_lookup_by_uuid(handler, uuid);
+ else
+ dev = device_lookup_by_id(handler, id);
+
if (dev)
return dev;
dev = talloc_zero(handler, struct discover_device);
dev->device = talloc_zero(dev, struct device);
dev->device->id = talloc_strdup(dev->device, id);
+ dev->uuid = talloc_strdup(dev, uuid);
list_init(&dev->params);
list_init(&dev->boot_options);
handler->server = server;
handler->waitset = waitset;
handler->dry_run = dry_run;
- handler->autoboot_enabled = config_get()->autoboot_enabled;
+ handler->autoboot_enabled = config_autoboot_active(config_get());
list_init(&handler->unresolved_boot_options);
+ list_init(&handler->progress);
+
/* set up our mount point base */
pb_mkdir_recursive(mount_base());
void device_handler_reinit(struct device_handler *handler)
{
struct discover_boot_option *opt, *tmp;
+ struct ramdisk_device *ramdisk;
unsigned int i;
device_handler_cancel_default(handler);
+ /* Cancel any pending non-default boot */
+ if (handler->pending_boot) {
+ boot_cancel(handler->pending_boot);
+ handler->pending_boot = NULL;
+ handler->pending_boot_is_default = false;
+ }
+
+ /* Cancel any remaining async jobs */
+ process_stop_async_all();
+ pending_network_jobs_cancel();
/* free unresolved boot options */
list_for_each_entry_safe(&handler->unresolved_boot_options,
list_init(&handler->unresolved_boot_options);
/* drop all devices */
- for (i = 0; i < handler->n_devices; i++)
+ for (i = 0; i < handler->n_devices; i++) {
discover_server_notify_device_remove(handler->server,
handler->devices[i]->device);
+ ramdisk = handler->devices[i]->ramdisk;
+ talloc_free(handler->devices[i]);
+ talloc_free(ramdisk);
+ }
talloc_free(handler->devices);
handler->devices = NULL;
handler->n_devices = 0;
+ talloc_free(handler->ramdisks);
+ handler->ramdisks = NULL;
+ handler->n_ramdisks = 0;
device_handler_reinit_sources(handler);
}
struct discover_boot_option *opt, *tmp;
unsigned int i;
+ list_for_each_entry_safe(&device->boot_options, opt, tmp, list) {
+ if (opt == handler->default_boot_option) {
+ pb_log("Default option %s cancelled since device removed",
+ opt->option->name);
+ device_handler_cancel_default(handler);
+ break;
+ }
+ }
+
for (i = 0; i < handler->n_devices; i++)
if (handler->devices[i] == device)
break;
talloc_free(device);
}
-static void boot_status(void *arg, struct boot_status *status)
+void device_handler_status(struct device_handler *handler,
+ struct status *status)
{
- struct device_handler *handler = arg;
-
discover_server_notify_boot_status(handler->server, status);
}
+static void _device_handler_vstatus(struct device_handler *handler,
+ enum status_type type, const char *fmt, va_list ap)
+{
+ struct status status;
+
+ status.type = type;
+ status.message = talloc_vasprintf(handler, fmt, ap);
+ status.backlog = false;
+
+ device_handler_status(handler, &status);
+
+ talloc_free(status.message);
+}
+
+static void _device_handler_vdevstatus(struct device_handler *handler,
+ struct discover_device *device, enum status_type type,
+ const char *fmt, va_list ap)
+{
+ char *msg;
+
+ msg = talloc_asprintf(handler, "[%s] %s",
+ device ? device->device->id : "unknown", fmt);
+ _device_handler_vstatus(handler, type, msg, ap);
+ talloc_free(msg);
+}
+
+void device_handler_status_dev_info(struct device_handler *handler,
+ struct discover_device *dev, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _device_handler_vdevstatus(handler, dev, STATUS_INFO, fmt, ap);
+ va_end(ap);
+}
+
+void device_handler_status_dev_err(struct device_handler *handler,
+ struct discover_device *dev, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _device_handler_vdevstatus(handler, dev, STATUS_ERROR, fmt, ap);
+ va_end(ap);
+}
+
+void device_handler_status_info(struct device_handler *handler,
+ const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _device_handler_vstatus(handler, STATUS_INFO, fmt, ap);
+ va_end(ap);
+}
+
+void device_handler_status_err(struct device_handler *handler,
+ const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _device_handler_vstatus(handler, STATUS_ERROR, fmt, ap);
+ va_end(ap);
+}
+
+void device_handler_status_download(struct device_handler *handler,
+ const struct process_info *procinfo,
+ unsigned int percentage, unsigned int size, char suffix)
+{
+ struct progress_info *p, *progress = NULL;
+ uint64_t current_converted, current = 0;
+ const char *units = " kMGTP";
+ unsigned long size_bytes;
+ char *update = NULL;
+ double total = 0;
+ unsigned int i;
+ int unit = 0;
+
+ list_for_each_entry(&handler->progress, p, list)
+ if (p->procinfo == procinfo)
+ progress = p;
+
+ if (!progress) {
+ pb_log("Registering new progress struct\n");
+ progress = talloc_zero(handler, struct progress_info);
+ if (!progress) {
+ pb_log("Failed to allocate room for progress struct\n");
+ return;
+ }
+ progress->procinfo = procinfo;
+ list_add(&handler->progress, &progress->list);
+ handler->n_progress++;
+ }
+
+ size_bytes = size;
+ for (i = 0; i < strlen(units); i++) {
+ if (units[i] == suffix)
+ break;
+ }
+
+ if (i >= strlen(units)) {
+ pb_log("Couldn't recognise suffix '%c'\n", suffix);
+ size_bytes = 0;
+ } else {
+ while (i--)
+ size_bytes <<= 10;
+ }
+
+ progress->percentage = percentage;
+ progress->size = size_bytes;
+
+ /*
+ * Aggregate the info we have and update status. If a progress struct
+ * has zero for both percentage and size we assume progress information
+ * is unavailable and fall back to a generic progress message.
+ */
+ list_for_each_entry(&handler->progress, p, list) {
+ uint64_t c;
+ double t;
+ if (!p->percentage || !p->size) {
+ update = talloc_asprintf(handler,
+ _("%u downloads in progress..."),
+ handler->n_progress);
+ current = total = 0;
+ break;
+ }
+
+ c = p->size;
+ t = (100 * c) / p->percentage;
+
+ current += c;
+ total += t;
+ }
+
+ if (total) {
+ current_converted = current;
+ while (current_converted >= 1000) {
+ current_converted >>= 10;
+ unit++;
+ }
+ update = talloc_asprintf(handler,
+ _("%u %s downloading: %.0f%% - %lu%cB"),
+ handler->n_progress,
+ ngettext("item", "items", handler->n_progress),
+ (current / total) * 100, current_converted,
+ units[unit]);
+ }
+
+ if (!update) {
+ pb_log("%s: failed to allocate new status\n", __func__);
+ } else {
+ device_handler_status_info(handler, "%s\n", update);
+ talloc_free(update);
+ }
+}
+
+void device_handler_status_download_remove(struct device_handler *handler,
+ struct process_info *procinfo)
+{
+ struct progress_info *p, *tmp;
+
+ list_for_each_entry_safe(&handler->progress, p, tmp, list)
+ if (p->procinfo == procinfo) {
+ list_remove(&p->list);
+ talloc_free(p);
+ handler->n_progress--;
+ }
+}
+
+static void device_handler_boot_status_cb(void *arg, struct status *status)
+{
+ device_handler_status(arg, status);
+}
+
static void countdown_status(struct device_handler *handler,
struct discover_boot_option *opt, unsigned int sec)
{
- struct boot_status status;
+ struct status status;
- status.type = BOOT_STATUS_INFO;
- status.progress = -1;
- status.detail = NULL;
+ status.type = STATUS_INFO;
status.message = talloc_asprintf(handler,
- "Booting in %d sec: %s", sec, opt->option->name);
+ _("Booting in %d sec: [%s] %s"), sec,
+ opt->device->device->id, opt->option->name);
+ status.backlog = false;
- discover_server_notify_boot_status(handler->server, &status);
+ device_handler_status(handler, &status);
talloc_free(status.message);
}
pb_log("Timeout expired, booting default option %s\n", opt->option->id);
+ platform_pre_boot();
+
handler->pending_boot = boot(handler, handler->default_boot_option,
- NULL, handler->dry_run, boot_status, handler);
+ NULL, handler->dry_run, device_handler_boot_status_cb,
+ handler);
handler->pending_boot_is_default = true;
return 0;
}
-static bool priority_match(struct boot_priority *prio,
- struct discover_boot_option *opt)
+struct {
+ enum ipmi_bootdev ipmi_type;
+ enum device_type device_type;
+} device_type_map[] = {
+ { IPMI_BOOTDEV_NETWORK, DEVICE_TYPE_NETWORK },
+ { IPMI_BOOTDEV_DISK, DEVICE_TYPE_DISK },
+ { IPMI_BOOTDEV_DISK, DEVICE_TYPE_USB },
+ { IPMI_BOOTDEV_CDROM, DEVICE_TYPE_OPTICAL },
+};
+
+static bool ipmi_device_type_matches(enum ipmi_bootdev ipmi_type,
+ enum device_type device_type)
{
- return prio->type == opt->device->device->type ||
- prio->type == DEVICE_TYPE_ANY;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(device_type_map); i++) {
+ if (device_type_map[i].device_type == device_type)
+ return device_type_map[i].ipmi_type == ipmi_type;
+ }
+
+ return false;
}
-static int default_option_priority(struct discover_boot_option *opt)
+static int autoboot_option_priority(const struct config *config,
+ struct discover_boot_option *opt)
{
- const struct config *config;
- struct boot_priority *prio;
+ enum device_type type = opt->device->device->type;
+ const char *uuid = opt->device->uuid;
+ struct autoboot_option *auto_opt;
unsigned int i;
- config = config_get();
+ for (i = 0; i < config->n_autoboot_opts; i++) {
+ auto_opt = &config->autoboot_opts[i];
+ if (auto_opt->boot_type == BOOT_DEVICE_UUID)
+ if (!strcmp(auto_opt->uuid, uuid))
+ return DEFAULT_PRIORITY_LOCAL_FIRST + i;
- for (i = 0; i < config->n_boot_priorities; i++) {
- prio = &config->boot_priorities[i];
- if (priority_match(prio, opt))
- return prio->priority;
+ if (auto_opt->boot_type == BOOT_DEVICE_TYPE)
+ if (auto_opt->type == type ||
+ auto_opt->type == DEVICE_TYPE_ANY)
+ return DEFAULT_PRIORITY_LOCAL_FIRST + i;
}
- return 0;
+ return -1;
}
-static bool device_allows_default(struct discover_device *dev)
+/*
+ * We have different priorities to resolve conflicts between boot options that
+ * report to be the default for their device. This function assigns a priority
+ * for these options.
+ */
+static enum default_priority default_option_priority(
+ struct discover_boot_option *opt)
{
- const char *dev_str;
+ const struct config *config;
- dev_str = config_get()->boot_device;
+ config = config_get();
- if (!dev_str || !strlen(dev_str))
- return true;
+ /* We give highest priority to IPMI-configured boot options. If
+ * we have an IPMI bootdev configuration set, then we don't allow
+ * any other defaults */
+ if (config->ipmi_bootdev) {
+ bool ipmi_match = ipmi_device_type_matches(config->ipmi_bootdev,
+ opt->device->device->type);
+ if (ipmi_match)
+ return DEFAULT_PRIORITY_REMOTE;
+
+ pb_debug("handler: disabled default priority due to "
+ "non-matching IPMI type %x\n",
+ config->ipmi_bootdev);
+ return DEFAULT_PRIORITY_DISABLED;
+ }
- /* default devices are specified by UUIDs at present */
- if (strcmp(dev->uuid, dev_str))
- return false;
+ /* Next, try to match the option against the user-defined autoboot
+ * options, either by device UUID or type. */
+ if (config->n_autoboot_opts) {
+ int boot_match = autoboot_option_priority(config, opt);
+ if (boot_match > 0)
+ return boot_match;
+ }
- return true;
+ /* If the option didn't match any entry in the array, it is disabled */
+ pb_debug("handler: disabled default priority due to "
+ "non-matching UUID or type\n");
+ return DEFAULT_PRIORITY_DISABLED;
}
static void set_default(struct device_handler *handler,
struct discover_boot_option *opt)
{
- int new_prio;
+ enum default_priority cur_prio, new_prio;
if (!handler->autoboot_enabled)
return;
- /* do we allow default-booting from this device? */
- if (!device_allows_default(opt->device))
- return;
+ pb_debug("handler: new default option: %s\n", opt->option->id);
new_prio = default_option_priority(opt);
- /* A negative priority indicates that we don't want to boot this device
- * by default */
- if (new_prio < 0)
+ /* Anything outside our range prevents a default boot */
+ if (new_prio >= DEFAULT_PRIORITY_DISABLED)
return;
+ pb_debug("handler: calculated priority %d\n", new_prio);
+
/* Resolve any conflicts: if we have a new default option, it only
* replaces the current if it has a higher priority. */
if (handler->default_boot_option) {
- int cur_prio;
- cur_prio = default_option_priority(
- handler->default_boot_option);
+ cur_prio = handler->default_boot_option_priority;
- if (new_prio > cur_prio) {
+ if (new_prio < cur_prio) {
+ pb_log("handler: new prio %d beats "
+ "old prio %d for %s\n",
+ new_prio, cur_prio,
+ handler->default_boot_option
+ ->option->id);
handler->default_boot_option = opt;
+ handler->default_boot_option_priority = new_prio;
/* extend the timeout a little, so the user sees some
* indication of the change */
handler->sec_to_boot += 2;
handler->sec_to_boot = config_get()->autoboot_timeout_sec;
handler->default_boot_option = opt;
+ handler->default_boot_option_priority = new_prio;
- pb_log("Boot option %s set as default, timeout %u sec.\n",
+ pb_log("handler: boot option %s set as default, timeout %u sec.\n",
opt->option->id, handler->sec_to_boot);
default_timeout(handler);
return resource_is_resolved(opt->boot_image) &&
resource_is_resolved(opt->initrd) &&
resource_is_resolved(opt->dtb) &&
+ resource_is_resolved(opt->args_sig_file) &&
resource_is_resolved(opt->icon);
}
return resource_resolve(opt->boot_image, "boot_image", opt, handler) &&
resource_resolve(opt->initrd, "initrd", opt, handler) &&
resource_resolve(opt->dtb, "dtb", opt, handler) &&
+ resource_resolve(opt->args_sig_file, "args_sig_file", opt,
+ handler) &&
resource_resolve(opt->icon, "icon", opt, handler);
}
assert(!opt->option->dtb_file);
assert(!opt->option->icon_file);
assert(!opt->option->device_id);
+ assert(!opt->option->args_sig_file);
if (opt->boot_image)
opt->option->boot_image_file = opt->boot_image->url->full;
opt->option->dtb_file = opt->dtb->url->full;
if (opt->icon)
opt->option->icon_file = opt->icon->url->full;
+ if (opt->args_sig_file)
+ opt->option->args_sig_file = opt->args_sig_file->url->full;
opt->option->device_id = opt->device->device->id;
struct discover_context *ctx;
ctx = talloc_zero(handler, struct discover_context);
+ ctx->handler = handler;
ctx->device = device;
list_init(&ctx->boot_options);
return ctx;
}
-/**
- * context_commit - Commit a temporary discovery context to the handler,
- * and notify the clients about any new options / devices
- */
-void device_handler_discover_context_commit(struct device_handler *handler,
- struct discover_context *ctx)
+void device_handler_add_device(struct device_handler *handler,
+ struct discover_device *device)
{
- struct discover_device *dev = ctx->device;
- struct discover_boot_option *opt, *tmp;
+ handler->n_devices++;
+ handler->devices = talloc_realloc(handler, handler->devices,
+ struct discover_device *, handler->n_devices);
+ handler->devices[handler->n_devices - 1] = device;
- if (!device_lookup_by_id(handler, dev->device->id))
- device_handler_add_device(handler, dev);
+ if (device->device->type == DEVICE_TYPE_NETWORK)
+ network_register_device(handler->network, device);
+}
- /* move boot options from the context to the device */
- list_for_each_entry_safe(&ctx->boot_options, opt, tmp, list) {
- list_remove(&opt->list);
+void device_handler_add_ramdisk(struct device_handler *handler,
+ const char *path)
+{
+ struct ramdisk_device *dev;
+ unsigned int i;
- if (boot_option_resolve(opt, handler)) {
- pb_log("boot option %s is resolved, "
- "sending to clients\n",
- opt->option->id);
- list_add_tail(&dev->boot_options, &opt->list);
- talloc_steal(dev, opt);
- boot_option_finalise(handler, opt);
- notify_boot_option(handler, opt);
+ if (!path)
+ return;
+
+ for (i = 0; i < handler->n_ramdisks; i++)
+ if (!strcmp(handler->ramdisks[i]->path, path))
+ return;
+
+ dev = talloc_zero(handler, struct ramdisk_device);
+ if (!dev) {
+ pb_log("Failed to allocate memory to track %s\n", path);
+ return;
+ }
+
+ dev->path = talloc_strdup(handler, path);
+
+ handler->ramdisks = talloc_realloc(handler, handler->ramdisks,
+ struct ramdisk_device *,
+ handler->n_ramdisks + 1);
+ if (!handler->ramdisks) {
+ pb_log("Failed to reallocate memory"
+ "- ramdisk tracking inconsistent!\n");
+ return;
+ }
+
+ handler->ramdisks[i] = dev;
+ i = handler->n_ramdisks++;
+}
+
+struct ramdisk_device *device_handler_get_ramdisk(
+ struct device_handler *handler)
+{
+ unsigned int i;
+ char *name;
+ dev_t id;
+
+ /* Check if free ramdisk exists */
+ for (i = 0; i < handler->n_ramdisks; i++)
+ if (!handler->ramdisks[i]->snapshot &&
+ !handler->ramdisks[i]->origin &&
+ !handler->ramdisks[i]->base)
+ return handler->ramdisks[i];
+
+ /* Otherwise create a new one */
+ name = talloc_asprintf(handler, "/dev/ram%d",
+ handler->n_ramdisks);
+ if (!name) {
+ pb_debug("Failed to allocate memory to name /dev/ram%d",
+ handler->n_ramdisks);
+ return NULL;
+ }
+
+ id = makedev(1, handler->n_ramdisks);
+ if (mknod(name, S_IFBLK, id)) {
+ if (errno == EEXIST) {
+ /* We haven't yet received updates for existing
+ * ramdisks - add and use this one */
+ pb_debug("Using untracked ramdisk %s\n", name);
} else {
- if (!opt->source->resolve_resource) {
- pb_log("parser %s gave us an unresolved "
- "resource (%s), but no way to "
- "resolve it\n",
- opt->source->name, opt->option->id);
- talloc_free(opt);
- } else {
- pb_log("boot option %s is unresolved, "
- "adding to queue\n",
- opt->option->id);
- list_add(&handler->unresolved_boot_options,
- &opt->list);
- talloc_steal(handler, opt);
- }
+ pb_log("Failed to create new ramdisk %s: %s\n",
+ name, strerror(errno));
+ return NULL;
}
}
+ device_handler_add_ramdisk(handler, name);
+ talloc_free(name);
+
+ return handler->ramdisks[i];
}
-void device_handler_add_device(struct device_handler *handler,
- struct discover_device *device)
+void device_handler_release_ramdisk(struct discover_device *device)
{
- handler->n_devices++;
- handler->devices = talloc_realloc(handler, handler->devices,
- struct discover_device *, handler->n_devices);
- handler->devices[handler->n_devices - 1] = device;
+ struct ramdisk_device *ramdisk = device->ramdisk;
- if (device->device->type == DEVICE_TYPE_NETWORK)
- network_register_device(handler->network, device);
+ talloc_free(ramdisk->snapshot);
+ talloc_free(ramdisk->origin);
+ talloc_free(ramdisk->base);
+
+ ramdisk->snapshot = ramdisk->origin = ramdisk->base = NULL;
+ ramdisk->sectors = 0;
+
+ device->ramdisk = NULL;
}
/* Start discovery on a hotplugged device. The device will be in our devices
struct discover_context *ctx;
int rc;
- process_boot_option_queue(handler);
+ device_handler_status_dev_info(handler, dev,
+ /*
+ * TRANSLATORS: this string will be passed the type of the
+ * device (eg "disk" or "network"), which will be translated
+ * accordingly.
+ */
+ _("Processing new %s device"),
+ device_type_display_name(dev->device->type));
/* create our context */
ctx = device_handler_discover_context_create(handler, dev);
/* add discovered stuff to the handler */
device_handler_discover_context_commit(handler, ctx);
+ process_boot_option_queue(handler);
out:
- talloc_free(ctx);
+ talloc_unlink(handler, ctx);
return 0;
}
{
struct discover_context *ctx;
+ device_handler_status_dev_info(handler, dev,
+ _("Processing DHCP lease response (ip: %s)"),
+ event_get_param(event, "ip"));
+
+ pending_network_jobs_start();
+
/* create our context */
ctx = device_handler_discover_context_create(handler, dev);
+ talloc_steal(ctx, event);
ctx->event = event;
iterate_parsers(ctx);
device_handler_discover_context_commit(handler, ctx);
- talloc_free(ctx);
+ talloc_unlink(handler, ctx);
return 0;
}
-/* incoming conf event */
-int device_handler_conf(struct device_handler *handler,
- struct discover_device *dev, struct pb_url *url)
-{
- struct discover_context *ctx;
-
- /* create our context */
- ctx = device_handler_discover_context_create(handler, dev);
- ctx->conf_url = url;
-
- iterate_parsers(ctx);
-
- device_handler_discover_context_commit(handler, ctx);
-
- talloc_free(ctx);
-
- return 0;
-}
-
static struct discover_boot_option *find_boot_option_by_id(
struct device_handler *handler, const char *id)
{
if (handler->pending_boot)
boot_cancel(handler->pending_boot);
+
+ platform_pre_boot();
+
handler->pending_boot = boot(handler, opt, cmd, handler->dry_run,
- boot_status, handler);
+ device_handler_boot_status_cb, handler);
handler->pending_boot_is_default = false;
}
void device_handler_cancel_default(struct device_handler *handler)
{
- struct boot_status status;
-
if (handler->timeout_waiter)
waiter_remove(handler->timeout_waiter);
handler->default_boot_option = NULL;
- status.type = BOOT_STATUS_INFO;
- status.progress = -1;
- status.detail = NULL;
- status.message = "Default boot cancelled";
-
- discover_server_notify_boot_status(handler->server, &status);
+ device_handler_status_info(handler, _("Default boot cancelled"));
}
void device_handler_update_config(struct device_handler *handler,
return;
discover_server_notify_config(handler->server, config);
+ device_handler_update_lang(config->lang);
device_handler_reinit(handler);
}
+static char *device_from_addr(void *ctx, struct pb_url *url)
+{
+ char *ipaddr, *buf, *tok, *dev = NULL;
+ const char *delim = " ";
+ struct sockaddr_in *ip;
+ struct sockaddr_in si;
+ struct addrinfo *res;
+ struct process *p;
+ int rc;
+
+ /* Note: IPv4 only */
+ rc = inet_pton(AF_INET, url->host, &(si.sin_addr));
+ if (rc > 0) {
+ ipaddr = url->host;
+ } else {
+ /* need to turn hostname into a valid IP */
+ rc = getaddrinfo(url->host, NULL, NULL, &res);
+ if (rc) {
+ pb_debug("%s: Invalid URL\n",__func__);
+ return NULL;
+ }
+ ipaddr = talloc_array(ctx,char,INET_ADDRSTRLEN);
+ ip = (struct sockaddr_in *) res->ai_addr;
+ inet_ntop(AF_INET, &(ip->sin_addr), ipaddr, INET_ADDRSTRLEN);
+ freeaddrinfo(res);
+ }
+
+ const char *argv[] = {
+ pb_system_apps.ip,
+ "route", "show", "to", "match",
+ ipaddr,
+ NULL
+ };
+
+ p = process_create(ctx);
+
+ p->path = pb_system_apps.ip;
+ p->argv = argv;
+ p->keep_stdout = true;
+
+ rc = process_run_sync(p);
+
+ if (rc || p->exit_status) {
+ /* ip has complained for some reason; most likely
+ * there is no route to the host - bail out */
+ pb_debug("%s: `ip` returns non-zero exit status\n", __func__);
+ pb_debug("ip buf: %s\n", p->stdout_buf);
+ process_release(p);
+ return NULL;
+ }
+
+ buf = p->stdout_buf;
+ /* If a route is found, ip-route output will be of the form
+ * "... dev DEVNAME ... " */
+ tok = strtok(buf, delim);
+ while (tok) {
+ if (!strcmp(tok, "dev")) {
+ tok = strtok(NULL, delim);
+ dev = talloc_strdup(ctx, tok);
+ break;
+ }
+ tok = strtok(NULL, delim);
+ }
+
+ process_release(p);
+ if (dev)
+ pb_debug("%s: Found interface '%s'\n", __func__,dev);
+ return dev;
+}
+
+static void process_url_cb(struct load_url_result *result, void *data)
+{
+ struct device_handler *handler;
+ struct discover_context *ctx;
+ struct discover_device *dev;
+ struct event *event = data;
+ const char *mac;
+
+ if (result->status != LOAD_OK) {
+ pb_log("%s: Load failed for %s\n", __func__, result->url->full);
+ return;
+ }
+
+ if (!event)
+ return;
+
+ handler = talloc_parent(event);
+ if (!handler)
+ return;
+
+ event->device = device_from_addr(event, result->url);
+ if (!event->device) {
+ pb_log("Downloaded a file but can't find its interface - pretending it was local\n");
+ event->device = talloc_asprintf(event, "local");
+ }
+
+ mac = event_get_param(event, "mac");
+ char *url = talloc_asprintf(event, "file://%s", result->local);
+ event_set_param(event, "pxeconffile", url);
+
+ dev = discover_device_create(handler, mac, event->device);
+ ctx = device_handler_discover_context_create(handler, dev);
+ talloc_steal(ctx, event);
+ ctx->event = event;
+
+ iterate_parsers(ctx);
+
+ device_handler_discover_context_commit(handler, ctx);
+
+ talloc_unlink(handler, ctx);
+}
+
+void device_handler_process_url(struct device_handler *handler,
+ const char *url, const char *mac, const char *ip)
+{
+ struct discover_context *ctx;
+ struct discover_device *dev;
+ bool allow_async = false;
+ struct pb_url *pb_url;
+ struct event *event;
+
+ event = talloc_zero(handler, struct event);
+ event->type = EVENT_TYPE_USER;
+ event->action = EVENT_ACTION_URL;
+
+ pb_url = pb_url_parse(event, url);
+ if (!pb_url || (pb_url->scheme != pb_url_file && !pb_url->host)) {
+ device_handler_status_err(handler, _("Invalid config URL!"));
+ talloc_free(event);
+ return;
+ }
+
+ if (url[strlen(url) - 1] == '/') {
+ event_set_param(event, "pxepathprefix", url);
+ event_set_param(event, "mac", mac);
+ event_set_param(event, "ip", ip);
+ event->device = device_from_addr(event, pb_url);
+ if (!event->device) {
+ device_handler_status_err(handler,
+ _("Unable to route to host %s"),
+ pb_url->host);
+ talloc_free(event);
+ return;
+ }
+ } else {
+ event_set_param(event, "pxeconffile", url);
+ allow_async = true;
+ }
+
+ if (pb_url->scheme == pb_url_file)
+ event->device = talloc_asprintf(event, "local");
+ else if (allow_async) {
+ /* If file is remote load asynchronously before passing to
+ * parser. This allows us to wait for network to be available */
+ if (!load_url_async(handler, pb_url, process_url_cb, event,
+ NULL, handler)) {
+ pb_log("Failed to load url %s\n", pb_url->full);
+ device_handler_status_err(handler, _("Failed to load URL!"));
+ talloc_free(event);
+ }
+ return;
+ }
+
+ /* If path is local we can parse straight away */
+
+ dev = discover_device_create(handler, mac, event->device);
+ if (pb_url->scheme == pb_url_file)
+ dev->device->type = DEVICE_TYPE_ANY;
+ ctx = device_handler_discover_context_create(handler, dev);
+ talloc_steal(ctx, event);
+ ctx->event = event;
+
+ iterate_parsers(ctx);
+
+ device_handler_discover_context_commit(handler, ctx);
+
+ talloc_unlink(handler, ctx);
+}
+
#ifndef PETITBOOT_TEST
+/**
+ * context_commit - Commit a temporary discovery context to the handler,
+ * and notify the clients about any new options / devices
+ */
+void device_handler_discover_context_commit(struct device_handler *handler,
+ struct discover_context *ctx)
+{
+ struct discover_device *dev = ctx->device;
+ struct discover_boot_option *opt, *tmp;
+
+ if (!device_lookup_by_uuid(handler, dev->uuid))
+ device_handler_add_device(handler, dev);
+
+ /* move boot options from the context to the device */
+ list_for_each_entry_safe(&ctx->boot_options, opt, tmp, list) {
+ list_remove(&opt->list);
+
+ /* All boot options need at least a kernel image */
+ if (!opt->boot_image || !opt->boot_image->url) {
+ pb_log("boot option %s is missing boot image, ignoring\n",
+ opt->option->id);
+ talloc_free(opt);
+ continue;
+ }
+
+ if (boot_option_resolve(opt, handler)) {
+ pb_log("boot option %s is resolved, "
+ "sending to clients\n",
+ opt->option->id);
+ list_add_tail(&dev->boot_options, &opt->list);
+ talloc_steal(dev, opt);
+ boot_option_finalise(handler, opt);
+ notify_boot_option(handler, opt);
+ } else {
+ if (!opt->source->resolve_resource) {
+ pb_log("parser %s gave us an unresolved "
+ "resource (%s), but no way to "
+ "resolve it\n",
+ opt->source->name, opt->option->id);
+ talloc_free(opt);
+ } else {
+ pb_log("boot option %s is unresolved, "
+ "adding to queue\n",
+ opt->option->id);
+ list_add(&handler->unresolved_boot_options,
+ &opt->list);
+ talloc_steal(handler, opt);
+ }
+ }
+ }
+}
+
+static void device_handler_update_lang(const char *lang)
+{
+ const char *cur_lang;
+
+ if (!lang)
+ return;
+
+ cur_lang = setlocale(LC_ALL, NULL);
+ if (cur_lang && !strcmp(cur_lang, lang))
+ return;
+
+ setlocale(LC_ALL, lang);
+}
+
static int device_handler_init_sources(struct device_handler *handler)
{
/* init our device sources: udev, network and user events */
- handler->udev = udev_init(handler, handler->waitset);
- if (!handler->udev)
- return -1;
-
handler->network = network_init(handler, handler->waitset,
handler->dry_run);
if (!handler->network)
return -1;
+ handler->udev = udev_init(handler, handler->waitset);
+ if (!handler->udev)
+ return -1;
+
handler->user_event = user_event_init(handler, handler->waitset);
if (!handler->user_event)
return -1;
return;
}
- udev_reinit(handler->udev);
+ system_info_reinit();
network_shutdown(handler->network);
handler->network = network_init(handler, handler->waitset,
handler->dry_run);
+
+ udev_reinit(handler->udev);
+}
+
+static inline const char *get_device_path(struct discover_device *dev)
+{
+ return dev->ramdisk ? dev->ramdisk->snapshot : dev->device_path;
+}
+
+static char *check_subvols(struct discover_device *dev)
+{
+ const char *fstype = discover_device_get_param(dev, "ID_FS_TYPE");
+ struct stat sb;
+ char *path;
+ int rc;
+
+ if (strncmp(fstype, "btrfs", strlen("btrfs")))
+ return dev->mount_path;
+
+ /* On btrfs a device's root may be under a subvolume path */
+ path = join_paths(dev, dev->mount_path, "@");
+ rc = stat(path, &sb);
+ if (!rc && S_ISDIR(sb.st_mode)) {
+ pb_debug("Using '%s' for btrfs root path\n", path);
+ return path;
+ }
+
+ talloc_free(path);
+ return dev->mount_path;
}
static bool check_existing_mount(struct discover_device *dev)
{
struct stat devstat, mntstat;
+ const char *device_path;
struct mntent *mnt;
FILE *fp;
int rc;
- rc = stat(dev->device_path, &devstat);
+ device_path = get_device_path(dev);
+
+ rc = stat(device_path, &devstat);
if (rc) {
pb_debug("%s: stat failed: %s\n", __func__, strerror(errno));
return false;
if (mntstat.st_rdev == devstat.st_rdev) {
dev->mount_path = talloc_strdup(dev, mnt->mnt_dir);
+ dev->root_path = check_subvols(dev);
dev->mounted_rw = !!hasmntopt(mnt, "rw");
dev->mounted = true;
dev->unmount = false;
return mnt != NULL;
}
+/*
+ * Attempt to mount a filesystem safely, while handling certain filesytem-
+ * specific options
+ */
+static int try_mount(const char *device_path, const char *mount_path,
+ const char *fstype, unsigned long flags,
+ bool have_snapshot)
+{
+ const char *fs, *safe_opts;
+ int rc;
+
+ /* Mount ext3 as ext4 instead so 'norecovery' can be used */
+ if (strncmp(fstype, "ext3", strlen("ext3")) == 0) {
+ pb_debug("Mounting ext3 filesystem as ext4\n");
+ fs = "ext4";
+ } else
+ fs = fstype;
+
+ if (strncmp(fs, "xfs", strlen("xfs")) == 0 ||
+ strncmp(fs, "ext4", strlen("ext4")) == 0)
+ safe_opts = "norecovery";
+ else
+ safe_opts = NULL;
+
+ errno = 0;
+ /* If no snapshot is available don't attempt recovery */
+ if (!have_snapshot)
+ return mount(device_path, mount_path, fs, flags, safe_opts);
+
+ rc = mount(device_path, mount_path, fs, flags, NULL);
+
+ if (!rc)
+ return rc;
+
+ /* Mounting failed; some filesystems will fail to mount if a recovery
+ * journal exists (eg. cross-endian XFS), so try again with norecovery
+ * where that option is available.
+ * If mounting read-write just return the error as norecovery is not a
+ * valid option */
+ if ((flags & MS_RDONLY) != MS_RDONLY || !safe_opts)
+ return rc;
+
+ errno = 0;
+ return mount(device_path, mount_path, fs, flags, safe_opts);
+}
+
static int mount_device(struct discover_device *dev)
{
- const char *fstype;
+ const char *fstype, *device_path;
int rc;
if (!dev->device_path)
goto err_free;
}
+ device_path = get_device_path(dev);
+
pb_log("mounting device %s read-only\n", dev->device_path);
- errno = 0;
- rc = mount(dev->device_path, dev->mount_path, fstype,
- MS_RDONLY | MS_SILENT, "");
+ rc = try_mount(device_path, dev->mount_path, fstype,
+ MS_RDONLY | MS_SILENT, dev->ramdisk);
+
if (!rc) {
dev->mounted = true;
dev->mounted_rw = false;
dev->unmount = true;
+ dev->root_path = check_subvols(dev);
return 0;
}
pb_log("couldn't mount device %s: mount failed: %s\n",
- dev->device_path, strerror(errno));
+ device_path, strerror(errno));
+
+ /* If mount fails clean up any snapshot */
+ devmapper_destroy_snapshot(dev);
pb_rmdir_recursive(mount_base(), dev->mount_path);
err_free:
static int umount_device(struct discover_device *dev)
{
+ const char *device_path;
int rc;
if (!dev->mounted || !dev->unmount)
return 0;
- pb_log("unmounting device %s\n", dev->device_path);
+ device_path = get_device_path(dev);
+
+ pb_log("unmounting device %s\n", device_path);
rc = umount(dev->mount_path);
if (rc)
return -1;
dev->mounted = false;
+ devmapper_destroy_snapshot(dev);
pb_rmdir_recursive(mount_base(), dev->mount_path);
talloc_free(dev->mount_path);
dev->mount_path = NULL;
+ dev->root_path = NULL;
return 0;
}
int device_request_write(struct discover_device *dev, bool *release)
{
+ const char *fstype, *device_path;
+ const struct config *config;
int rc;
*release = false;
+ config = config_get();
+ if (!config->allow_writes)
+ return -1;
+
if (!dev->mounted)
return -1;
if (dev->mounted_rw)
return 0;
- pb_log("remounting device %s read-write\n", dev->device_path);
- rc = mount(dev->device_path, dev->mount_path, "",
- MS_REMOUNT | MS_SILENT, "");
- if (rc)
+ fstype = discover_device_get_param(dev, "ID_FS_TYPE");
+
+ device_path = get_device_path(dev);
+
+ pb_log("remounting device %s read-write\n", device_path);
+
+ rc = umount(dev->mount_path);
+ if (rc) {
+ pb_log("Failed to unmount %s: %s\n",
+ dev->mount_path, strerror(errno));
return -1;
+ }
+
+ rc = try_mount(device_path, dev->mount_path, fstype,
+ MS_SILENT, dev->ramdisk);
+ if (rc)
+ goto mount_ro;
dev->mounted_rw = true;
*release = true;
return 0;
+
+mount_ro:
+ pb_log("Unable to remount device %s read-write: %s\n",
+ device_path, strerror(errno));
+ rc = try_mount(device_path, dev->mount_path, fstype,
+ MS_RDONLY | MS_SILENT, dev->ramdisk);
+ if (rc)
+ pb_log("Unable to recover mount for %s: %s\n",
+ device_path, strerror(errno));
+ return -1;
}
void device_release_write(struct discover_device *dev, bool release)
{
+ const char *fstype, *device_path;
+
if (!release)
return;
- pb_log("remounting device %s read-only\n", dev->device_path);
- mount(dev->device_path, dev->mount_path, "",
- MS_REMOUNT | MS_RDONLY | MS_SILENT, "");
- dev->mounted_rw = false;
+ device_path = get_device_path(dev);
+
+ fstype = discover_device_get_param(dev, "ID_FS_TYPE");
+
+ pb_log("remounting device %s read-only\n", device_path);
+
+ if (umount(dev->mount_path)) {
+ pb_log("Failed to unmount %s\n", dev->mount_path);
+ return;
+ }
+ dev->mounted_rw = dev->mounted = false;
+
+ if (dev->ramdisk) {
+ devmapper_merge_snapshot(dev);
+ /* device_path becomes stale after merge */
+ device_path = get_device_path(dev);
+ }
+
+ if (try_mount(device_path, dev->mount_path, fstype,
+ MS_RDONLY | MS_SILENT, dev->ramdisk))
+ pb_log("Failed to remount %s read-only: %s\n",
+ device_path, strerror(errno));
+ else
+ dev->mounted = true;
+}
+
+void device_sync_snapshots(struct device_handler *handler, const char *device)
+{
+ struct discover_device *dev = NULL;
+ unsigned int i;
+
+ if (device) {
+ /* Find matching device and sync */
+ dev = device_lookup_by_name(handler, device);
+ if (!dev) {
+ pb_log("%s: device name '%s' unrecognised\n",
+ __func__, device);
+ return;
+ }
+ if (dev->ramdisk)
+ device_release_write(dev, true);
+ else
+ pb_log("%s has no snapshot to merge, skipping\n",
+ dev->device->id);
+ return;
+ }
+
+ /* Otherwise sync all relevant devices */
+ for (i = 0; i < handler->n_devices; i++) {
+ dev = handler->devices[i];
+ if (dev->device->type != DEVICE_TYPE_DISK &&
+ dev->device->type != DEVICE_TYPE_USB)
+ continue;
+ if (dev->ramdisk)
+ device_release_write(dev, true);
+ else
+ pb_log("%s has no snapshot to merge, skipping\n",
+ dev->device->id);
+ }
}
#else
+void device_handler_discover_context_commit(
+ struct device_handler *handler __attribute__((unused)),
+ struct discover_context *ctx __attribute__((unused)))
+{
+ pb_log("%s stubbed out for test cases\n", __func__);
+}
+
+static void device_handler_update_lang(const char *lang __attribute__((unused)))
+{
+}
+
static int device_handler_init_sources(
struct device_handler *handler __attribute__((unused)))
{
{
}
-#endif
+void device_sync_snapshots(
+ struct device_handler *handler __attribute__((unused)),
+ const char *device __attribute__((unused)))
+{
+}
+#endif
projects / petitboot / blobdiff